i buy first the 2 engines at station 1 with no crew in it and i buy that red ambulance with nobody in it(saves money) than i buy a policecar and a policemotor and let them patrol than i buy a unmarked policecar with the 4 last people you can place in it(everyone but not the police officer) than i buy a policehelicopter with also 4 people in it than i buy a emergency helicopter with only paramedics and 1 stretcher and than i can start to play